From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alan Stern <stern@rowland.harvard.edu>
Subject: Re: [PATCH RFC V3.5] leds: trigger: Introduce an USB port trigger
Date: Thu, 25 Aug 2016 16:08:14 -0400 (EDT)
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On Thu, 25 Aug 2016, Alan Stern wrote:

> > Does the lsusb command do the mapping in the user space or maybe
> > it takes the names from kernel?
> 
> lsusb does the mapping in userspace, based on an ID database.  On my 
> system (Fedora), the database is /etc/udev/hwdb.bin.

There's also /usr/share/hwdata/usb.ids -- I don't know if or how the
two databases are related.  And there's /usr/lib/udev/hwdb.d/20-usb*.

Alan Stern

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Date: Thu, 25 Aug 2016 16:08:14 -0400 (EDT)
From: Alan Stern <stern@rowland.harvard.edu>
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Subject: Re: [PATCH RFC V3.5] leds: trigger: Introduce an USB port trigger
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On Thu, 25 Aug 2016, Alan Stern wrote:

> > Does the lsusb command do the mapping in the user space or maybe
> > it takes the names from kernel?
> 
> lsusb does the mapping in userspace, based on an ID database.  On my 
> system (Fedora), the database is /etc/udev/hwdb.bin.

There's also /usr/share/hwdata/usb.ids -- I don't know if or how the
two databases are related.  And there's /usr/lib/udev/hwdb.d/20-usb*.

Alan Stern